Parkes observations for project P1054 semester 2025APRS_14

With this proposal we ask time to continue our timing follow-up campaign of pulsars discovered with the MeerKAT telescope. Fourtytwo sources have been discovered in targeted observations of Fermi unidentified point sources, two towards Supernova Remnants, 19 in the Magellanic Clouds, 105 in Globular Clusters and 81 in a survey of the Galactic plane. A large fraction of the new discoveries are recycled pulsars (including a few relativistic systems and several 'spider' binaries), or young pulsars. Timing observations have an essential role in exploiting the full potential of any pulsar discovery, allowing for the precise measurement of rotational, astrometric and orbital parameters which, in turn, give us powerful tools to improve our understanding of the physics in extreme environments as well as of the population of neutron stars as a whole. The UWL receiver of the Parkes telescope is a sensitive, versatile instrument that is allowing us to successfully time these new sources, in the bright-end of TRAPUM discoveries.

本提案申请观测时长，以延续针对MeerKAT望远镜所发现脉冲星的计时随访观测项目。通过对费米（Fermi）未证认点源的靶向观测，我们已发现42个脉冲星源：其中2个位于超新星遗迹（Supernova Remnants）方向、19个位于麦哲伦云（Magellanic Clouds）、105个位于球状星团（Globular Clusters），另有81个来自银道面巡天项目。本次新发现的脉冲星中，很大一部分为再循环脉冲星（包含少量相对论性系统与数例蜘蛛型双星系统），亦有部分为年轻脉冲星。计时观测对于充分发挥每一次脉冲星发现的科研潜力具有不可或缺的作用，其可实现对脉冲星自转、天体测量与轨道参数的精准测定，进而为我们深化对极端物理环境下物理规律的认知，以及全面理解中子星的整体种群特征提供强有力的研究手段。帕克斯望远镜（Parkes telescope）搭载的UWL接收机是一款高灵敏度、多用途的观测设备，能够助力我们顺利完成这批新发现脉冲星的计时观测工作，这批源均属于TRAPUM巡天项目中亮度较高的发现样本。